A moification of the amplatzpneumographic chair for better head stabilization.
D014695:Cerebral Ventriculography / Q000295:instrumentation*; D006257:Head; D006801:Humans; D011011:Pneumoencephalography / Q000295:instrumentation; D013679:Technology, Radiologic / Q000295:instrumentation*; D014054:Tomography / Q000295:instrumentation